Swine flu precautions

A Thai schoolgirl wears a face mask during a visit to the Science Museum in Bangkok. The swine flu pandemic has grown "unstoppable" and all nations will need access to vaccines, a WHO official said on July 13, as 12 new deaths were reported worldwide and a study raised fresh concerns.

A Thai schoolgirl wears a face mask during a visit to the Science Museum in Bangkok. The swine flu pandemic has grown "unstoppable" and all nations will need access to vaccines, a WHO official said on July 13, as 12 new deaths were reported worldwide and a study raised fresh concerns. (Getty Images)

A Thai schoolgirl wears a face mask during a visit to the Science Museum in Bangkok. The swine flu pandemic has grown "unstoppable" and all nations will need access to vaccines, a WHO official said on July 13, as 12 new deaths were reported worldwide and a study raised fresh concerns.Getty Images